Thanks for contacting us and for your questions.
Indeed, currently the only possibility to implement the desired behavior is to add some extra items in your data collection and use a template selector. However, I would like to inform you that we have the desired functionality on our TODO list and we will provide it as soon as possible (probably for the Q1 SP1 release).
Do not hesitate to get back to us in case you have further questions or need assistance.
the Telerik team
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